SB Tactical Mil-Spec AR Receiver Extension 7075 Aluminum 6 Position for SBA3

The SB Tactical Mil-Spec AR Receiver Extension is built by SB Tactical from durable 7075 aluminum with a corrosion-resistant black finish, delivering a rugged, long-lasting solution for OEM AR setups. This 6-position receiver extension accommodates SBA3 braces and other compatible stocks, providing versatile adjustment to fit a wide range of shooters and configurations while preserving solid rigidity under dynamic firing conditions. Its robust construction and precision dimensions ensure reliable buffer tube engagement and consistent indexing, supporting steady cheek welds, stable recoil management, and repeatable stock positioning for both field use and range sessions. The bulk packaging for OEM use makes this extension an economical choice for manufacturers, gunsmiths, and professional builders seeking a trusted, factory-grade component that aligns with industry standards. With aluminum's high strength-to-weight ratio and SB Tactical's reputation for reliability, owners can expect enhanced receiver stability, smooth operation, and dependable performance across different AR platforms and shooting disciplines. This extension is an ideal upgrade or replacement for those aiming to optimize stock travel, adjust fitment for varied body sizes, and maintain consistent handling from the moment the rifle comes into action.